What are the benefits of Satanism?

I am a Noob when it comes to satanism. I am beginning to question christianity, What are the general benefits of Satanism, and is it possible to make a deal with Satan, or one of his demons? I am interested to know what He could give me for my soul. If the price is right. How do you learn to see or talk to demons? Is it possible to talk to satan without having to summon him formally?

You cant sell your soul to satan but i  think u could ask demons for a favor but they request something for it though i like to believe they like incense and tobacco like the indians give tobacco to spirits